package com.kevin.second;

/**
 * Created by loli on 2014/10/22.
 */
public class DoubleOperation {
    public double add(double a, double b){
        return a + b;
    }

    public double minus(double a, double b){
        return a - b;
    }

    public double multiply(double a, double b){
        return a * b;
    }

    public double divide(double a, double b){
        return a / b;
    }
}
